Airbus stops accepting PW1100G engines for A320neo aircraft

Soon it emerged that Airbus was halting deliveries of Pratt-equipped models, including to the plane's biggest customer, India's IndiGo.

The European Aviation Safety Agency on Friday imposed restrictions on the use of recently delivered A320neo-family jets with engines starting at a certain serial number.

IndiGo has withdrawn three A320 neo aircraft from service effective from February 9, 2018.

"Pratt & Whitney, with the support of Airbus, is in close contact with customers to address an issue that is isolated to a limited sub population of engines".

"Product safety boards of P&W and Airbus, post evaluating the PW1100G-JM engine issue, have decided that all Neo deliveries are on hold 'til further notice", states InterGlobe in a filing with the Indian stock exchange.

There are 43 engines installed on 32 aircraft affected by the latest problem, 21 aircraft have one engine with the modified configuration, and 11 aircraft have both engines with the new configuration. Last time also, despite IndiGo facing 69 Neo engine failures between March 2016 and Sept 2017 and GoAir too reporting in-flight disruptions on account of the engine woes, the DGCA did not take any tough stand. Airbus selected the PW1100 as the launch engine for the A320neo (new engine option) aircraft family, based on its fuel efficiency, noise reduction, and lower Carbon dioxide and NOX emissions.

In brief, the European Aviation Safety Agency (EASA) issued, as usual, an emergency airworthiness directive in which it explains that "several engine stops in flight as well as takeoff interruptions have been reported".

The GTF (Geared Turbo Fan) is a new generation reactor which competes with the LEAP engines which are co-produced by the duo General Electric-Safran.

The problem stems from a component in the engine that can show early signs of wear, and it's located in an area that must withstand high pressure, an Airbus spokesperson said.

EASA said aircraft with two affected engines can only operate three more cycles before one of them has to be replaced with a substitute that does not the aft hub issue. Airbus has issued an Alert Operators Transmission (AOT) providing instructions "to de-pair the affected engines and discontinue [ETOPS] for aircraft fitted with affected engines", according to EASA. United Technologies said Monday that approximately 55 engines delivered to the Airbus final assembly line awaiting installation on customer aircraft were also affected.

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